Culvert.



J. H. SGHLAFLY.

GULVBRT.

APPLICATION FILED JUNE 8, 190 9.

Patented Dec.13, 1910.

- To all whom it may concern:

UNITED STATES PATENT OFFICE.

JULIUS H. SOHLAFLY, 0F CANTON, OHIO, ASSIGNOR TO THE CANTON CULVERT COM- 7 -IPANY, OF CANTON, OHIO, A CORPORATION" OF OHIO.

GULVERT.

Application filed Iune'8, 1909. Serial No. 500,868.

Be it known that I, JUL'IUs H. SoH'nAFLY, a citizen of the United States, residing at Canton, in the county of Stark and State of Ohio, have invented a new and useful Culvert, of which the following is a specification.

My invention relatesto a simple, inexpensive, convenient and efficient means for connecting longitudinally adjacent c'ulvert or pipe sections together, -said sections being usually-formed of sheet metal and provided with circumferential corrugations adjacent their abutting ends, and preferably formed with a longitudinal series of similar corrugations throughout their entire length.

The objects of the invention are to provide .a culvert. which ma be transported in sections and easily an conveniently connected together, to form a. tight and stron joint between the adjacent .sections, to ren er the connection of said culverts a simple mechanical operation and'to provide means for anchoring the completed culvert when it has v v illustrated in been properly placedin the ground. Many other objects of practical value will be readily apparent to those skilled in the art.

I attain these objects by the construction the accompanying drawing, in Wl'llCh- Figure 1 is a side elevation, partly broken away and partly in section, showing the abutting e s of twoadjacent culvert sections andthe clamping band properly in place, the whole being constructed in accordance with my improvement. Fig. 2 is a fragmentary edge view of the clamping band illustrating the method of drawing its ends, together. Fig. 3 is an enlarged fragmentary perspective view of the clamping. band.

Throu bout the several views similar numorals 0 reference indicate similar parts.

i As before stated the sections may be made of corrugated or plain sheet metal. If they are made of plain sheets it is necessary to form one or two corrugations atthc end of eferable method lengthen when thesaid sheets. are then 7 .bent'int eireuIar form and fastened in' th'e construction of; thes'eetions, annular corrugations, extending. entirely around the sections as shown in the drawing. This not only-produces a stronger section, but also makes it very convenient if it is desired to cut ofi' a portion of the section in order to produce a culvert of a required length.

y The numerals 1 and 2 indicate two longitudinally adjacent sections made in accordance with the preferable construction, just mentioned. It will be noted that the sections terminate at their abutting ends at the point 'of least diameter. This produces a one-half externally concave corrugation at theend of each section, the first full convex corrugation lying immediately adjacent thereto. The abutting ends 3 are not intended to over-lap or telescope each other, but merely to abut. T

The clamping band 4 extends around the said sections and is of sufiicient width to bridge the joint between the abutting ends of the sections and'to over-lie the first full corrugation in the end of each section. The edges 5 of the said band extend to the center or point of least diameter of the first full externally concave corrugation, and when the ends of the band are drawn together the sections-will be securely held a amst separation and. a firm and substantial joint between the abuttin sections will be produced. It, should be note that't-he annular corrugations in the. band correspond to the circumferential corrugations of the pipe sections, thereby permitting the end corrugations of the said sections to nest within the corrugations of the said band. This feature is well illustrated in Fig. 1, where portions of the culvert sections andband are broken awa The ends of the band are bent outward y forming the corrugated flanges or lips 6 provided with some means for clamping-the band upon the culvert sections. The preferable means consists of bolts 7 extending through apertures-8 in the flan es and provided with the nuts 9 whereb t e said bolts may be caused to draw the anges together and thus diminish the circumference of the band and clam it firmly-upon the sections. It will be note that the corrugations in the flanges 6' correspond to the annular corrugations of'the band and that the apertures 8 are arran d in externally convex corrugations of flanges. By this arrangement each bolt is arranged in incwith the center Patented Dec. 13, 1910.

of its corresponding annular corrugation of the band, thus providing for precise adjustment of the band upon the abuttingsections as well as adding strength to the structure. It should also be noted that by reason of the corrugations of the flanges 6 the clamping pull of each bolt is properly distributed for the full width of the corrugation corre-- a wide range of circumferentialadjustment.

-In all cases the clamping band should be made of less circumferential measurement than the culvert section to permit of the I proper action on the part of the bolts 7.

It may be thought desirable in some instances to form the culvert sectionswith their abutting ends terminating at the point of greatest externally convex corrugation,

with a full externally concave corrugation lying immediately adjacent thereto. In such case the'clamping band should be provided with annular corrugations adapted to correspond to the formation of the abutting ends as just described.

When the sections are properly united and clamped together the flanges 6, extending laterally, will form means for anchoring the culvert when it has been properly placed and covered in the ground. The circumferential corrugations of the culvert sections and clamping band together with-the said flanges 6 will prevent longitudinal shifting of the. culvert while in place and the flanges 6 will also act to prevent any circumferential movement of the culvert.

The absence of inwardly projecting fastening means or rough or uneven portions on .the inner side of the culvert sections is-a feature of considerable importance, and the fact that it isunnecessary to punch, cut, or otherwise mutilate the sections in forming the joint does away with the labor incident to such operations, the rough inner surfaces caused thereby, a-ndavoids the necessity of byone another, each section having annular corrugations formed therein, extending at intervals from end to end of, the sections, of

.means for drawing the ends of said band together to clamp it on the joint.

2. A culvert composed of pipe sections placed end ,to end, each section being made so up of plates riveted together, and having annular corrugatiqns formed therein, a band having corrugations extending lengthwise thereof on each side of its longitudinal center, said corrugations over-lapping and emv bracin respectively the corrugations in the ends 0 said pipe sections and said band having its ends turned outwardly forming lips thereon and 'means passing through. said lips for drawing the ends of said band together, substantially as described.

3. In combination, two pipe sections v placed end to end, each section provided with circumferential corrugations at the ends thereof, a clamping band arranged to encircle the abutting ends of said sections, said band provided with corrugations adapted to nest with and embrace the end corrugation of each of said pipe sections, the corrugations in'said band corresponding to those in said sections, and means for dr'awingthe ends of said band together.

4. A culvert composed of sections placed end to end, each section having circumfer ential corrugations formed therein, a band having corrugations extending lengthwise thereof, said corrugations over-lapping and embracing the corrugations in said sections, and said band having its ends bent outwardly forming corrugated flanges, and

means connected to said flanges for drawing the ends of said band together;

' 5. A sheet metal culvert comprising cylindrical sections provided with circumferential corrugations extendin to the extremities of the sections, longitu inally adjacent sections arranged end to end, and a clamping band provided with annular corrugations adapted to engage the corrugations in the ends of the sections adjacent the abuttingl 2 ends thereof, said band provided at its ends with outwardly bent corrugated flanges, and means fordrawing said flanges toward each other.

6. A culvert comprising cylindrical pipe sections arranged end to end, and ,a clamping band adapted to be applied externally to bridgethe joint between the adjacent sections and to en age the external surfaces of said sections ad jacent said joint, said band provided with outwardly bent corrugated flanges, and means adapted to draw said flanges toward each other.

.7. In a culvert of the character described a clamping band provided with annular corrugations, and having its ends bent outwardly to form flanges having corrugations corresponding with the annular corrugations in the band, and means extending between said flanges to draw said flanges toward each other and to decrease the circumference of the band.

8. In a sheet metal culvert an annular clam ing band having its ends bent out 9. In a culvert of the character described, a clamping band provided with annular corrugat-ions and having its ends bent outwardly to" form flanges, the said flanges provided withcorrugations corres onding with the annular corrugations in tie band, the said flanges having apertures in the externally convex corrugations of the flanges and bolts extendin through said apertures for drawing said anges toward each other and decreasing the circumference of the band.

In testimony that I claim the ab0.'e I have hereunto subscribed m name in the presence of two witnesses.

C. A. IRWINM K. R. JENSON. 

